Effects of arbuscular mycorrhizal fungi on flavonoid content in Astragali Radix cultivated in cadmium-contaminated soils

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 24, 2025

Introduction As bioactive components in Astragali Radix (AR), flavonoids can promote hematopoiesis and have hypolipidemic properties, among others, they are easily affected by environmental factors. Arbuscular mycorrhizal fungi (AMF) influence flavonoid synthesis plants exposed to heavy metals expanding the root absorption area establish a reciprocal symbiotic relationship with most plants. Methods We investigated effects of Funneliformis mosseae time on total key monomers (calycosin, calycosin-7-glucoside, formononetin, ononin) AR cadmium (Cd) using pot experiment. The treatments consisted non-inoculation F. inoculation. A two-way analysis variance Duncan’s test were conducted. Results Shoot decreased ( p < 0.05) at 60 (20.5%) 90 d (18.3%), while formononetin (83.4%) 120 d; conversely, calycosin-7-glucoside increased inoculation, although over from regardless calycosin Root 15.2% d, then 23.5% along increases (117.1%) ononin (59.6%) (21.2%) which under colonization rate, shoot Cd, C, P, H, C/N ratio, significantly flavonoids, Cd accounted for 90.0% variation, may be associated its impact synthase. variation was influenced S, biomass, N, suggesting that AMF regulation vary between organs. Calycosin-7-glucoside phenylalanine ammonia-lyase (a gene synthesis). Overall, led significant calycosin-7-glucoside. higher shoots than roots, indicating annual utilized medicinal purposes Discussion These results provide insights into enhancement quality grown Cd-contaminated soils, long-term varying levels should further investigated.

Language: Английский

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AmMYB82 promotes flavonoid accumulation and enhances drought tolerance in Astragalus membranaceus

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 120090 - 120090

Published: Nov. 23, 2024

Language: Английский

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Dynamics of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Medicinal Plants and Their Promotion on the Performance of Astragalus mongholicus

Agronomy, Journal Year: 2024, Volume and Issue: 14(11), P. 2695 - 2695

Published: Nov. 15, 2024

Arbuscular mycorrhizal fungi (AMF) act as intermediaries between the root systems of host plants and surrounding soil, offering various benefits to medicinal plants, such promoting growth enhancing quality. However, range AMF in characteristics plant–AMF networks farmland ecosystems remain insufficiently studied. In present study, we measured colonization, species diversity, soil properties 31 at Anguo Medicine Planting Base Northwest China. The network was subsequently analyzed, growth-promoting effects on Astragalus mongholicus were examined. Spore density, richness, total colonization exhibited significant variation across different plant species. Glomus melanosporum, G. claroideum, Septoglomus constrictum dominant among 61 Soil organic matter, phosphatase, available nitrogen, glomalin-related proteins (GRSPs) main factors affecting composition. Structural equation models a partitioning analysis suggested highly species-specific pattern distribution patterns, where identities explained 61.4% changes spore density 48.2% colonization. nutrient availability phosphatase activity also influenced Our results confirmed glomalin an important contributor carbon for cultivating plants. symbiotic nested low specialized structure, high connectance, modularity, which saturated symbiosis stability provided by redundant associations. Despite wide inoculation revealed performance active ingredient content levels A. mongholicus, claroideum Sep. induced highest biomass accumulation mongholicus. These findings advance our understanding community dynamics rhizosphere offer valuable insights optimizing cultivation practices.

Language: Английский

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Effects of endophytic fungus Y118 on physiological and biochemical indexes and quality improvement of Zanthoxylum nitidum (Roxb.) DC

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

To understand the effects of endophytic fungus Y118 on physiological characteristics Zanthoxylum nitidum (Roxb.) DC after co-culture with its host nitidum, we measured plant growth index (dry root weight) at different stages using solid fermentation medium containing Y118. Physiological and biochemical indexes (defensive enzyme activity) were determined by chromatographic analysis contents nitidum chloride chelidonine, main active ingredients in root. At 3, 6, 9 12 months, dry weight treatment group was significantly increased 1123.53%, 51.08%, 56.40% 47.12% compared control group, respectively. 3-month mark, superoxide dismutase (SOD) activity exceeded that control. After months cultivation, peroxidase (POD) showed a significant difference 0.05 level. phenylalanine ammonia lyase (PAL) higher than increasing 187.21%. chlorophyll b 45.28% 28.87%, respectively, group. co-culture, nitidine groups 0.783 0.904 mg/g, showing increase 42.11% 44.18% group; chelidonine 40.73% 26.57% Inoculation improved tolerance promoted thereby enhancing quality nitidum. This implicates as potential artificial fertilizer for

Language: Английский

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Characterization of Dark Septate Endophytes Under Drought and Rehydration and Their Compensatory Mechanisms in Astragalus membranaceus

Microorganisms, Journal Year: 2024, Volume and Issue: 12(11), P. 2254 - 2254

Published: Nov. 7, 2024

Drought is the most significant abiotic stress that impedes agroforestry development. In nature, drought tolerance also depends on ability to compensate after water restoration. Dark septate endophytes (DSEs) are believed enhance plant in environments. However, compensatory mechanisms of DSEs for rehydration have not been reported. To assess and capacity DSEs, following were investigated this study using solid-liquid screening potting tests under different gradients, conditions, field water-holding capacities:

Language: Английский

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